Discussion in 'Antennas, Feedlines, Towers & Rotors' started by W3PNM, Nov 25, 2019.
Looking for recommendations on construction articles for building a four square for 40 meters
Oh, man; I envy you already!
A while back, there was an amateur radio operator, who lived about 10-miles north of me, who had 8-each HyGain HyTowers phased for 80-meter and 40-meter operation.
My pair of 40-meter verticals phased works very well. However, with the 8-verticals phased, I think he could hear an 80-meter crystal dropped, in Outer Mongolia, at high noon local time!
Let's get back to reality here...
When you double the size of a array, you can reasonably expect between 2 and 2.5 db of gain.
Going from one antenna to 4 will give you between 4 and 5 db of gain.
You may, if the noise happens to be in the direction of a null in your array see somewhat higher improvement in s+n/n
However, if a deep null for noise rejection is your goal, you will find a small, adjustible loop to be far more usefull as you will be certain to be able to steer the null to the required direction.
that is a very useful link.... thanks.
It would be lovely before you build it according to the links from #2, to simulate it with EZNEC+v.6
not a bad idea....